121552670 has 16 divisors (see below), whose sum is σ = 221432400. Its totient is φ = 48034944.

The previous prime is 121552667. The next prime is 121552679. The reversal of 121552670 is 76255121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121552679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72395 + ... + 74054.

It is an arithmetic number, because the mean of its divisors is an integer number (13839525).

Almost surely, 2^121552670 is an apocalyptic number.

121552670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121552670 is a deficient number, since it is larger than the sum of its proper divisors (99879730).

121552670 is a wasteful number, since it uses less digits than its factorization.

121552670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146539.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 121552670 is about 11025.0927433741. The cubic root of 121552670 is about 495.3606459284.

The spelling of 121552670 in words is "one hundred twenty-one million, five hundred fifty-two thousand, six hundred seventy".